Performance Replacement Distributor for the GM Opti-Spark II. Perfect replacement for the prone-to-fail OE unit. All new construction features: New polished aluminum housing with heavy duty Oil-lite bushings high dielectric strength glass reinforced cap epoxy over mold and brass contacts with balanced rotor cross flow vent design & includes new pin drive shaft seals and installation hardware. Application: 1994-1/2 to 1996 Chevrolet Caprice 4.3L/5.7L and Impala SS 5.7L LT-1 V8 1994-1/2 to 1996 Buick Roadmaster 5.7L LT-1 V8 1994-1/2 to 1996 Cadillac Fleetwood 5.7L LT-1 V8 1995-1997 Chevrolet Camaro 5.7L LT-1/LT-4 V8 1995-1996 Chevrolet Corvette 5.7L LT-1/LT-4 V8 1995-1997 Pontiac Firebird 5.7L LT-1/LT-4 V8